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All Journal Jurnal Ilmiah Wahana Pendidikan Envirous Environmental Science and Engineering Conference Proceeding Jurnal Sains dan Teknologi Envirotek : Jurnal Ilmiah Teknik Lingkungan Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Kendali Teknik dan Sains Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Serambi Engineering Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Tuhu Agung Rachmanto
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Perencanaan Saluran Terbuka Drainase Area Penambangan Komoditas Feldspar di Kecamatan Gandusari Muhammad Fairuz Akmal; Tuhu Agung Rachmanto
Jurnal Kendali Teknik dan Sains Vol. 2 No. 1 (2024): Januari : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v2i1.2439

Abstract

PT MAS operates in the mining sector, extracting white rocks or feldspar from steep and rugged slopes. Inadequate drainage systems pose significant challenges, such as floods, erosion, and landslides, emphasizing the critical role of effective drainage in mining activities. The designed drainage system incorporates trapezoidal open channels at the mining steps' base. Before reaching natural water bodies, mining water is directed to sedimentation ponds to settle sediments. This research, an experimental study correlating theory with field data, begins with a literature review on open channel drainage theories in mining areas. Data collection includes location specifics, mining area dimensions, rainfall, and runoff coefficients. Manning equation calculations determine planned open channel dimensions, with a bottom width of 0.45 m, flow depth of 0.39 m, freeboard height of 0.097 m, water surface width of 0.9 m, and a slope angle of 60⁰. The research aims to contribute insights for the development and management of open channel drainage systems in mining areas.
Dampak Kerusakan Sumber Daya Alam Akibat Kegiatan Penambangan Komoditas Batu Gamping di Kecamatan Panceng, Kabupaten Gresik, Provinsi Jawa Timur Ivan Ardiansyah; Naufal Syarif Ardyanto; Tuhu Agung Rachmanto
Jurnal Kendali Teknik dan Sains Vol. 2 No. 3 (2024): Juli : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v2i3.3476

Abstract

The aim of limestone mining activities is to obtain the main raw material, namely limestone, which can then be used as a construction raw material such as cement. This data collection method is to collect primary data obtained from identifying activity locations and secondary data obtained from Journal Reviews and other scientific articles and then compiling them into a narrative. From the results of this analysis, it can be seen that there is a positive impact, namely the recruitment of workers from the local area and a negative impact, namely a decrease in ambient air quality, a decrease in water quality, soil erosion, disruption of flora and fauna and plant vegetation.
Klasifikasi Tutupan Lahan di Kabupaten Trenggalek Menggunakan Google Earth Engine Juan Vincent Elfonda; Vikhory Bagus Wahyu Nugroho; Tuhu Agung Rachmanto
Jurnal Kendali Teknik dan Sains Vol. 2 No. 3 (2024): Juli : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v2i3.3488

Abstract

Land cover is defined as the physical and biological cover of the earth's surface, both those formed naturally such as swamps, hills and rivers and those formed by man-made means such as rice fields, gardens, forests and buildings. As technology develops, conventional methods of satellite image processing are starting to be abandoned. This is because conventional methods require quite a long time to process satellite image data. The presence of Google Earth Engine (GEE), which is a cloud computing-based platform, makes it easier for users to process satellite image data boldly and for free. This research aims to classify satellite image land cover in the Trenggalek Regency area, East Java. The level of accuracy in this study uses a confusion matrix. The accuracy test results show a value of 90.23%.
Komparasi Status Mutu Kimia Sungai Jagir Menggunakan Metode Indeks Pencemaran, STORET, dan BCWQI Yuni Imroatul Mufida; Tuhu Agung Rachmanto
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 4 (2023): Agustus 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i4.2478

Abstract

Jagir River, which is a branch of the Brantas River, is often used as a waste disposal site by community activities. The residents’ activities caused the Jagir River was polluted and classified as class III where the parameters pH, COD, and TSS exceeded the quality standards. This is contrary to its designation as a tourism sector and river transportation. This research was conducted to analyze the parameter level of COD, BOD, and pH parameters at each sampling point as well as apply and compare the Pollution Index, STORET, and BCWQI methods. The sampling points in this study were divided into 4 location points with periodic monitoring, one week two sampling times, one day there were three sampling times, morning, afternoon and evening. The research results obtained, the parameters COD, BOD which exceed the established quality standards, namely Government Regulation Number 22 of 2021. The Pollution Index method has the highest value of 5.8 which is included in the "Moderately Polluted" category. In the STORET method, the result is -25 and it is classified as a "Moderately Polluted" river. Finally, the BCWQI method yielded 41.60 and was included in the "Moderately Polluted" category. The appropriate method for this research is the Pollution Index Method.
Pengaruh Konsentrasi Koagulan Terhadap Proses Pengolahan Air Di PDAM Surya Sembada Kota Surabaya Rafif Permata Dwidewitra; M. Miftahul Huda; Tuhu Agung Rachmanto
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 2 No. 2 (2024): Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v2i2.313

Abstract

Coagulation is one of the processes of water treatment by the addition of chemicals, the purpose of which is to bind particles like particles or dissolve so that they clump. Coagulation concentration definitely affects the coagulation process carried out. In addition, the addition of coagulation also affects the water produced for distribution. Testing of the impact of coagulant concentrations on raw water treatment processes has been carried out on the PDAM Surya Sembada Surabaya. The use of laboratory testing methods is done to see the water quality when using different coagulants. The results of the analysis obtained that the difference in the concentration of coagulants has an influence on the process of water treatment, this is due to several factors that support the existence of variation in the use of the coagulation concentration.
Pengaruh Penerapan Sistem IPAL terhadap Kulitas Air Buangan Rumah Pemotongan Hewan Naura Nisrine Hidayatullah; Tuhu Agung Rachmanto
Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Vol. 2 No. 3 (2024): Juli: Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipi
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/konstruksi.v2i3.384

Abstract

PT X is a company engaged in animal slaughtering and produces liquid waste in the process of its activities. Located in Banyuwangi Regency, East Java Province, this study aims to determine the effect of the implementation of the Wastewater Treatment Plant (WWTP) system on the quality of PT X's wastewater. The effect of implementing the WWTP system can be measured through baseline data collection, evaluation of WWTP effectiveness, observation of WWTP operation and maintenance, and recommendations in accordance with the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number 68 of 2016 concerning Domestic Wastewater Quality Standards. Pollutant parameters in wastewater include BOD, COD, TSS, and O&G (Oil & Grease) that exceed the quality standards. After the implementation of the WWTP system, the effluent results showed a decrease and no longer exceeded the quality standards, proving that the implemented WWTP system has a positive effect on the quality of the PT X abattoir discharge water.
Analisis Pengaruh Musim Penghujan Dan Musim Kemarau Terhadap Kualitas Wilayah Sungai Brantas Vikhory Bagus Wahyu Nugroho; Juan Vincent Elfonda; Tuhu Agung Rachmanto
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 2 No. 3 (2024): Juni : Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v2i3.360

Abstract

The Brantas River is a large river in East Java that has an important role for the community. Seasonal changes have an impact on the quality of the Brantas River in Indonesia. Testing is conducted by comparing samples taken twice a year, representing the dry and rainy seasons. The river's quality is analyzed based on several parameters such as Dissolved Oxygen (DO), BOD, COD, NO3-N, and Phosphate. The results are then compared with the standard river quality according to Government Regulation No. 22 of 2021. The analysis results indicate that the season has a significant impact on the river water quality, as seen from the different parameters in each season.
Analisis Sistem Pengelolaan Limbah B3 di Industri Minuman Ringan Kabupaten Sidoarjo Rizky Maulida Annisafitri; Pranandito Wisnu Prabowo; Tuhu Agung Rachmanto
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 1 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i1.725

Abstract

The purpose of this study is to determine the handling of b3 waste by the soft drink industry. The research method used is to compare the local situation with current regulations. The comparison is carried out using a guttman scale where if it is appropriate, a score of 1 is given and if it is not appropriate, a score of 0 is given. The source of B3 waste generated by the soft drink industry comes from maintenance activities, laboratories, offices, and transportation. The type of hazardous waste comes from category 1 general specific sources, namely expired chemicals from laboratories, while from non-specific sources in the form of hazardous contaminated waste, waste from laboratories containing hazardous substances, and used batteries. Then there are category 2 general specific sources in the form of used toner, while from non-specific sources in the form of electronic waste, used B3 packaging, used cloth, used lubricating oil, and residual ink. The characteristics of B3 waste produced include toxic, flammable, and corrosive. In the transportation of B3 waste, the Sidoarjo Regency Soft Drink Industry has collaborated with third parties. Based on the results of the analysis of B3 waste management in soft drink industry companies classified in the “good” category. However, there are still things that need to be improved in the management of B3 waste in the form of applying symbols and labels, packaging, and storage.
Evaluasi Fasilitas Penyimpanan Sementara Limbah Bahan Berbahaya dan Beracun (B3) pada Industri Akumulator Listrik di Kecamatan Taman, Kabupaten Sidoarjo Naurah Thifal Safitri; Pranandito Wisnu Prabowo; Tuhu Agung Rachmanto
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 3 No. 1 (2025): Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v3i1.728

Abstract

Companies operating in the electricity accumulator industry sector, in the production process produce waste in the form of hazardous and toxic materials (B3). The management of B3 waste is carried out based on the provisions stated in the Regulation of the Minister of Environment and Forestry Number 6 of 2021 concerning Procedures and Requirements for Hazardous and Toxic Waste Management. Therefore, the waste generated requires special handling to prevent environmental pollution. Therefore, the waste generated requires special handling so as not to pollute the environment. Hazardous waste management in the electricity accumulator industry includes various stages, both for waste in the solid and liquid phases, namely identification, inventory, packaging, labeling and symbolization, storage, and transportation carried out by third parties. This research aims to assess the current condition of hazardous waste management in the electricity accumulator industry, evaluate it, and provide recommendations that are in line with applicable regulations. The research method used is a descriptive approach. In the inventory process, the electricity accumulator industry requires Temporary Storage Sites (TPS) to store B3 waste before transportation by third parties.
Pengaruh Jumlah Blade, Kemiringan Sudut dan Jarak Pengaduk dari Dasar Pada Proses Koagulasi Flokulasi dalam Menurunkan Parameter TSS dan Kekeruhan Dzaky, Muhammad Luqman; Tuhu Agung Rachmanto
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The quality of river water is influenced by the levels of Total Suspended Solids (TSS) and turbidity, which serve as indicators of environmental pollution. An effective method to reduce these parameters is the coagulation-flocculation process. The effectiveness of this process depends on physicochemical and hydrodynamic factors, including impeller design. However, hydrodynamic aspects such as the number of blades, blade angle, and distance of the impeller from the bottom are rarely considered in detail in previous studies. Therefore, the objective of this study is to analyze the optimal impeller design to improve TSS and turbidity removal efficiency. This study examines variations in the number of blades (2, 4, and 6), blade angles (0°, 30°, 45°, and 60°), and impeller distance from the bottom (3 cm, 4 cm, and 5 cm). The results indicate that the optimum impeller design for TSS and turbidity reduction is 6 blades, 0° blade angle, and 5 cm impeller distance from the bottom. Under these conditions, TSS removal reached 93.5%, while turbidity removal reached 98.2%. These results demonstrate that proper impeller design can significantly improve the efficiency of the coagulation-flocculation process.
Co-Authors angger sulistya Aulia Ulfah Farahdiba Dzaky, Muhammad Luqman Egi Pebritama Elcyber Alqadri Andili Esha adiba Farhan Septiari Wibisono Geafiata Amalia Nurbaiti Ivan Ardiansyah Juan Vincent Elfonda Lintang Putri Rafsanjani M. Miftahul Huda M.Yureico Soobirumbassa U.K Yureico muhammad chumaidy maimun abdillah ainani jundah Muhammad Dani Dhaifullah Muhammad Dani Dhaifullah Muhammad Fairuz Akmal Muhammad Fairuz Akmal Namira Namira Naufal Syarif Ardyanto Naura Nisrine Hidayatullah Naurah Thifal Safitri Ni Putu Devina Putri Maharani Nurilita Amalia Cahyani Nurilita Amalia Cahyani Pranandito Wisnu Prabowo Rafif Permata Dwidewitra Rizky Maulida Annisafitri Umi Hafilda Salamah Vidia Wahyu Meidy Safitri Vikhory Bagus Wahyu Nugroho Yuni Imroatul Mufida